Take off all your clothes
From Create Your Own Story
You strip off your dress, your bra, and your thong. He watches you avidly, and you can see a bulge in his pants. Reluctantly, but not daring to stall, you sit down next to him on the bed.
"T-terms," he stammers. It occurs to you that, even as harsh and confident as he's been acting, he's probably a virgin, like you. "I have photographic evidence of you cheating on my cell phone. If I show it to the principal, you'll be expelled from school and have to explain what happened to your parents. I'll undertake not to do that, as long as you do exactly as I tell you."
It occurs to you while if he showed it to the principal now you'd be in big trouble, if he showed it to the principal some time in the future, you could probably play it off as trick photography and get him in trouble for trying to blackmail you. It also occurs to you that you might be able to find and destroy his cell phone.
Do you:
